 The route clearance units at FOB Salerno were also responsible for routinely clearing the Khost-Gardez Pass.Route clearance is a slow operation as units make slow progress to neutralize mines along the route, since the K-G Pass is relatively long and susceptible to attack the mission routinely took several days to complete.The base is in a hostile location and is only 30 miles south of Tora Bora, it is also only 25 miles north of the location of the friendly fire incident that killed Pat Tillman.